akaboukwu. Of course, it is not a mobile phone that we see in our lives, but a medical device dedicated to stomatology. It can be used to clean teeth and grind dental caries. According to speed and structure, they can be divided intoh.

The dental high-speed handpieces are manufactured precisely and have a complex structure. Ogwe osisi ndị gbagwojuru anya na ọkpọkọ na-esiri ike ịbanye n'ọnụ ụlọ, mmiri na akụkụ ikuku, na ngwa ndị ọzọ na imi. Ihe owuwu ndị a pụrụ iche dị mfe imetọ ma sie ike steehie nke jupụtara n'oge a na-emegharị emechiri emechi mgbe emechiri emechi eze.